CA1088046A - Heat exchanger - Google Patents
Heat exchangerInfo
- Publication number
- CA1088046A CA1088046A CA280,040A CA280040A CA1088046A CA 1088046 A CA1088046 A CA 1088046A CA 280040 A CA280040 A CA 280040A CA 1088046 A CA1088046 A CA 1088046A
- Authority
- CA
- Canada
- Prior art keywords
- liquid
- units
- tank
- fluid
- flow path
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
- 239000012530 fluid Substances 0.000 claims abstract description 37
- 125000006850 spacer group Chemical group 0.000 claims abstract description 32
- 230000002093 peripheral effect Effects 0.000 claims abstract description 15
- 238000001816 cooling Methods 0.000 claims abstract description 8
- 239000003921 oil Substances 0.000 claims description 46
- 239000007788 liquid Substances 0.000 claims description 39
- 239000010687 lubricating oil Substances 0.000 claims description 4
- 239000000110 cooling liquid Substances 0.000 claims 2
- 239000002826 coolant Substances 0.000 abstract description 9
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 2
- 239000002184 metal Substances 0.000 description 3
- 238000013019 agitation Methods 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 239000010705 motor oil Substances 0.000 description 1
- 230000000087 stabilizing effect Effects 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
- F28D9/00—Heat-exchange apparatus having stationary plate-like or laminated conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall
- F28D9/0012—Heat-exchange apparatus having stationary plate-like or laminated conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall the apparatus having an annular form
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D35/00—Filtering devices having features not specifically covered by groups B01D24/00 - B01D33/00, or for applications not specifically covered by groups B01D24/00 - B01D33/00; Auxiliary devices for filtration; Filter housing constructions
- B01D35/18—Heating or cooling the filters
Abstract
Abstract of the Disclosure A heat exchanger such as an oil cooler for exchanging heat between two fluids such as coolant water and oil in which the heat exchanger has a tank or casing through which coolant is circulated and containing a stack of heat exchange units each comprising a pair of plates joined together at peripheral edges but spaced apart to provide an oil path defined also by spacer means through the successive internal fluid chambers of the units and a coolant path also defined by spacer means between the units.
The spacers between the units comprise sections of the plates making up the units and spacers. The disclosure also includes two embodiments of bypass valves for bypassing most of the internal fluid chambers in the successive units when fluid such as oil is above a selected viscosity which indicates that much less cooling is required.
The spacers between the units comprise sections of the plates making up the units and spacers. The disclosure also includes two embodiments of bypass valves for bypassing most of the internal fluid chambers in the successive units when fluid such as oil is above a selected viscosity which indicates that much less cooling is required.
Description
- ~0~046 _ AT EXCHANGER
BACKGROUND OF THE INVENTION
The most pertinent prior art of which applicant is aware is its own Canadian Patent No. 971,950, granted July 29, 1975, counterpart to U.S. Patent No. 3,743,011 to Frost which is also a heat exchanger and specifically an oil cooler made up of stacked plates and which also discloses two embodiments of pressure controlled by-pass of one of the fluids such as oil. The present invention differs from this in providing certain structural ad-vantages which are disclosed and claimed in the present application.
SUMMARY OF THE INVENTION
One of the features of this invention is to provide an im-proved heat exchanger that is particularly adapted for cooling lubricating oil in an engine in which the coolant chambers for the two heat exchange fluids are formed by stacked spaced plates in a casing or tank with spacer means for defining the extent of the two sets of chambers with the result that the heat exchanger structure is simple in design, inexpensive to make and readily serviced when required.
Another feature of the invention is to provide such a heat exchanger with improved valve means that is automatically operated by the high viscosity of one of the fluids such as lubricating oil at a relatively low temperature where cooling is not required so as to bypass much of the cooling capacity of the exchanger.
The invention broadly comprehends a heat exchanger for exchanging heat between a first fluid and a second fluid. The heat exchanger includes a plurality of heat exchange units each comprised of a pair of plates joined permanently together at respective outer peripheral edges. A first spacer means in eacll exchange unit is provided between and joined to the pair of plates.
The spacer means are located inwardly of the outer peripheral -- 1 -- L~
~0~046 \
- edges and define with the outer peripheral edges a first fluid chamber in each unit. A tank encloses the plurality of units.
The units are arranged in spaced series in the tank by including second spacer means. Thus each first fluid chamber is separate and spaced from an adjacent first fluid chamber, thereby providing r a second fluid chamber between each adjacent pair of the units.
An opening in each plate of each unit in the spaced series is prov-ided and the second spacer means include seal members located at and surrounding adjacent openings. The heat exchanger is provided with means for joining the first fluid chambers in a first fluid flow path including the openings and the seal members. Means for directing the first fluid into the tank and the first fluid flow path are also provided, along with means for directing the first fluid from the tank and the first fluid flow ~ath through an exit opening. The heat exchanger is further provided Witll means for directing the second fluid through the tank between the successive units and thereby through the second chambers.
- .
10~3~046 Brief Description of the Drawings Figure 1 is a side elevational view partially in section of an engine block having mounted thereon a heat exchanger oil cooler embodying the invention with an oil filter of the custom-ary type in position superimposed on the oil cooler.
Figure 2 is a sectional view taken substantially along line 2-2 of Figure 4.
Figure 3 is a detail sectional view taken substantially along line 3-3 of Figure 2.
Figure 4 is a longitudinal sectional view through one embodiment of an oil cooler of the invention and substantially coinciding with the section line 4-4 of Figure 2 and enlarged for clarity of illustration.
Figure 5 is a fragmentary view of a portion of Figure 4 showing the pressure operated valve in open position.
Figure 6 is a view similar to Figure 4 but illustrating a second embodiment of the invention.
Figure 7 is a view similar to Figure 5 but illustrating the valve of the second embodiment in open position.
Figure 8 is a plan view of the bottom gasket plate of the heat exchanger of both embodiments of Figures 4 and 6.
Figure 9 is a sectional view taken substantially along line 9-9 of Figure 8.
Figure 10 is a plan view of one of the heat exchange - 2a -~.
~0~3~046 units used in both embodiments of the invention.
Figure 11 is a sectional view taken substantia]ly along line 11-11 of Figure 10.
Figure 12 is a plan vie~l of one of the pair of plates used in each heat excllange unit.
~ igure 13 is a sectional view taken substantially along line 13-13 of Figure 12.
Description of the Preferred Embocliments . _ _ _ _ _ In the embodiment of Fi.gures 1-5 the heat exchanyer 10 is an oil cooler mounted on an engine block 11 and connected to the coolant system of the engine by an inlet hose 12 and an outlet hose 13. In the embodiment of Figure 1 there is illustrated an oil filter 14 mounted on the heat exchanger 10 in superimposed relationship. For clarity of illustration the filter is shown in broken lines in the two embodiments of Figures 4 and 6.
As illustrated in detail in Fiyures 3-5 the oil cooler comprises a plurality of heat exchange uni.ts 15 sho~7n in assembled relationship in Figures ~ and 6 and illustra-ted indi.viduall.y in Figures 10 and 11. Each of these heat exchange units comprises a pair of plates 16 and 17 joined together at their peripheral edges as sho~7n at 18 with the plates held in spaced apart position as illustrated in Figure 11 and provided with first spacers 19 on the ;.nterior ~ each pair of plates 16 and 17 to define with the sealed edges 18 an internal first fluid or oil chamber 20.
The heat exchange units 15 are arranged in a superimposed stack as sho~Jn in both embod;ments of Figures ~ and 6 ~7ith each assembly or plurality of heat exchange units being enclosed by a generally cylindrical casing or tank 21.
Within the tank 21 there are provided means including spacers 22 bet~7een the units 15 for arranging these units in spaced series to provide a p]urality of success;vc second fluid chambers ~0~46 ~3 between the units. In the illustrated embodiments, of course, these chambers 23 are for the liquid coolant flowing from the entrance through the inlet l.ine 12 and from the heat exchanger back to the liquid coolant supply through the outlet line 13.
The pair of plates 16 and 17 comprising the individual heat exchange units 15 are provided with aligned openings 24 which serve as flow openings to provide access to and from the internal oil chambers 20. These openings which are separated from the water chambers by the spacers 22 comprise an oil inlet manifold 25 through which the oil flows and from there laterally into the chambers 20 as illustrated by the arrows 26 in both embodiments of Figures 4 and 6.
Within each oil chamber 20 of each unit 15 there is provided a turbulizer 27 to provide agitation to the oil and thus increase the heat transfer between the oil and the liquid coolant.
Any type turbulizer desired may be used but the one disclosed is of the type in which the sheet of metal 28 is cut in slits to provide strands alternate ones of which are distorted above and below the metal sheet 28 to provide projections 29.
Projecting through a central opening 30 in each of the units 15 and surrounded by the second spacers 22 is a pipe 31 having its lower end connected to a threaded extension 32 on the engine block 11 and its upper end threaded as shown at 33 to pro-vide a mounting for the filter 14. A filter of course is not necessary in the heat exchanger combination of this invention as the upper end 34 of the pipe 31 may be provided with a return cap, if desired, as illustrated in Figure 2 of applicant's above prior Canadian Patent No. 971,950.
The upper end of the heat exchanger 10 of this invention is defined by a sheet metal dome 35 that is shaped to provide an annular peripheral chamber 36. This chamber serves as a stabiliz-ing mounting for the oil filter 14 which is, of course, provided ,~
-: .
10~3~046 , with a gasket 37 of an 0-ring type between the filter 14 and the dome 35. A gasket similar to the gasket 37 is provided on the bottom of the exchanger between a bottom gasket plate 38 and an adjacent surface 39 of the block 11 as illustrated by the 0-ring type gasket 40.
In order to provide auxiliary spacers cooperating with the second spacers 22 to provide for the second or coolant fluid chambers 23 there are provided projecting distortions in each of the plates 16 and 17 that comprise these auxiliary spacers. These 10 spacers 41 are in the shape of truncated cones and therefore have flat tops 42 that are adapted to be arranged in contact in the successive heat exchange units 15 as illustrated in Figures 4 and 6. In order to provide stability to the assembly of heat ex-change units the end plates have their flat tops in similar contact with similar projections in a bottom header plate 43 in both em-bodiments and the end 44 of the casing or tank 21.
The bottom gasket plate 38 is of generally inverted dish-shape to provide a fluid distribution chamber 45 which in the illustrated embodiments is of course for distributincJ oil into 20 the oil inlet manifold 25 that has an entrance 46 at the engine block end of the heat exchanger. This communication into the lower two plate unit 15 is through aligned openings in the gasket plate 38, the header plate 43 and the lower spacer 22.
The gasket plate 38 and thus the gasket 40 surrounds a passage 47 in the block 11 for flow of heated oil 48 from the engine sump into the heat exchanger 10. The engine block 11 is also provided with a passage 49 in the embodiment of Figure 4 for the return of a portion of the cooled oil 52 to the engine sump in a manner to be described hereinafter. This passage ~9 telescopi~
30 cally receives a tube 53 that is attached to the plate 38 at a circular flange portion 54 and as can be seen in F~rc 4 is located adjacent to one side of the gaskct 40.
-The upper end 4~ of the tanJ 31 and the correspondingportion of the dome 35 is provided with an exit opening 55 from the heat exchanger and to the filter 1.4 when one is used. ~he oil after passage through the filter is then directed as indicat~d schematically by the arrows 56 into the top open end of the pipe 31 and from there back into the gallery of the engine block.
Therefore, the opening 46 in the heat exchanger comprises the entrance opening to the flow path 26 and the top opening 55 com-prises an exit opening from the heat exchanger oil outlet manifold 6~.
The dome 35 is provi.ded with a valve opening 57 that coincides with a similar opening 58 in the end ~ of the tank and the two comprising a bypass opening 59 that is aligned with the entrance 46 to the liquid inlet manifold 25. This bypass opening 59 is provided with an overlying leaf spring valve 62 that is : held in place by an annular extension 63 on the oil return pipe 31. This spring valve 62 normally 1;~s on top of the dome 35 to overlie the bypass opening 59 as shown in Figure 2. This causes the oil flow 26 in the illustrated embodiments to flow into the manifold 25, laterally as indicated into the oil chambers 20 in the units 15 in parallel flow and then by way of a diametrically opposite oil outlet manifold 6~ through the exit opening 55 and also through the auxiliary return passage 49.
However, when the viscosity of the liquid 48 is high, such as is the case with cold oil, the pressure of the cold oil is sufficient to displace upwardly the valve 62 to the open position of Figure 5 thereby permitting the oil to pass directly from the heat exchanger as indicated by the arrows 65 and thus bypassing much of the volume of the oil chambers 20. In this instance there will, of course, be some oil that will pass through the oppositely located opening 55 but because of the di.rect alignment oE tlle bypass openinC3 59 with the entrance ~6 the amount of oil passing through the coo]ing chambers will be relatively small.
10~3~3046 In the embodiment of the heat exchanger of Fiyure-6 the bottom of the oi.l outlet manifold 64 is provided with the second embodiment o~ a bypass valve. In this embodiment the valve 66 comprises a spring retainer 67 located in the bottom of the manifold 64.
The bottom of the retainer 67 is connected to an annular mounting member 72 that is located in the flange 54 that in the first embodiment held the tube 53.
The annular mounting 72 on its inner upper surface defines a valve seat that is engaged by a valve disc 73 normally held in closed position by a helical spring 74 that is positioned internally of the retainer 67. In this embodiment the opening shown at 57 in the dome 35 is omitted as this dome 75 contains only the outlet opening 76 that corresponds to the opening 55 o~
the first embodiment and the central opening 30. In this second embodiment the engine block 11 is also provided with the oil passage 47 but the auxiliary return passage 49 of the first em-bodiment is omitted. All other elements are exactly the same including the heat exchange units 15 and the pipe 31.
In this second embodiment of Figure 6 the heated oil 48 from the engine sump also enters the bottom of the inlet mani-fold 25 flowing laterally as indicated by arrows 26 into the chambers 20 in the units 15 in parallel flow throughward to exit at outlet manifold 64, thence through the exit opening 76. ~ow-ever, when the viscosity is such that pressure on the engine oil 48 is relatively great, the oil in the distribution chamber 45 will press upwardly against the bottom of the valve disc 73 as indicated by the arrows 77 to raise the valve to the open position illustrated in Figure 7. This permits the viscous oil under these conditions where very little if any cooli.ng is required to pass upwardly through and around valve 66 and into the outlet manifold 64 and from there through the out].et openinc3 76. As can be seen in Figure 6, in this embodiment the valve 66 and the outlet opening 76 are substantially linearly aligned. Then ~7hen the oil becomes sufficiently heated that its viscosity drops and spring 74 again closes the valve disc 73 to the position shown in Figure 6 the oil 48 is again directed as shown at 26 laterally through the interiors of the units 15 and into the diametrically opposite outlet manifold 64 defined by the aligned plate openings 68.
In the embodiment of Figure 4 the auxil~y return of some of the cooled oil 52 through the return passage ~9 permits an 1' increased flow rate because of this return of the portion to the sump after cooling. The remainder of the oil is of course directed to the gallery as indicated at 56 after filtering with the filter 14. Then the pressure relief valve 62 at the opposite end of the unit or in the dome 35 is provided for bypassing the ma30r portion of the heat exchanger when the oil is thick and congealed under the cold starting conditions.
In the embodiment of Figure 6 thick cold oil at cold start-'ns conditions lifts the valve disc 73 to the posi.tion shown in Figure 7 so that it can pass substantially directly into the
BACKGROUND OF THE INVENTION
The most pertinent prior art of which applicant is aware is its own Canadian Patent No. 971,950, granted July 29, 1975, counterpart to U.S. Patent No. 3,743,011 to Frost which is also a heat exchanger and specifically an oil cooler made up of stacked plates and which also discloses two embodiments of pressure controlled by-pass of one of the fluids such as oil. The present invention differs from this in providing certain structural ad-vantages which are disclosed and claimed in the present application.
SUMMARY OF THE INVENTION
One of the features of this invention is to provide an im-proved heat exchanger that is particularly adapted for cooling lubricating oil in an engine in which the coolant chambers for the two heat exchange fluids are formed by stacked spaced plates in a casing or tank with spacer means for defining the extent of the two sets of chambers with the result that the heat exchanger structure is simple in design, inexpensive to make and readily serviced when required.
Another feature of the invention is to provide such a heat exchanger with improved valve means that is automatically operated by the high viscosity of one of the fluids such as lubricating oil at a relatively low temperature where cooling is not required so as to bypass much of the cooling capacity of the exchanger.
The invention broadly comprehends a heat exchanger for exchanging heat between a first fluid and a second fluid. The heat exchanger includes a plurality of heat exchange units each comprised of a pair of plates joined permanently together at respective outer peripheral edges. A first spacer means in eacll exchange unit is provided between and joined to the pair of plates.
The spacer means are located inwardly of the outer peripheral -- 1 -- L~
~0~046 \
- edges and define with the outer peripheral edges a first fluid chamber in each unit. A tank encloses the plurality of units.
The units are arranged in spaced series in the tank by including second spacer means. Thus each first fluid chamber is separate and spaced from an adjacent first fluid chamber, thereby providing r a second fluid chamber between each adjacent pair of the units.
An opening in each plate of each unit in the spaced series is prov-ided and the second spacer means include seal members located at and surrounding adjacent openings. The heat exchanger is provided with means for joining the first fluid chambers in a first fluid flow path including the openings and the seal members. Means for directing the first fluid into the tank and the first fluid flow path are also provided, along with means for directing the first fluid from the tank and the first fluid flow ~ath through an exit opening. The heat exchanger is further provided Witll means for directing the second fluid through the tank between the successive units and thereby through the second chambers.
- .
10~3~046 Brief Description of the Drawings Figure 1 is a side elevational view partially in section of an engine block having mounted thereon a heat exchanger oil cooler embodying the invention with an oil filter of the custom-ary type in position superimposed on the oil cooler.
Figure 2 is a sectional view taken substantially along line 2-2 of Figure 4.
Figure 3 is a detail sectional view taken substantially along line 3-3 of Figure 2.
Figure 4 is a longitudinal sectional view through one embodiment of an oil cooler of the invention and substantially coinciding with the section line 4-4 of Figure 2 and enlarged for clarity of illustration.
Figure 5 is a fragmentary view of a portion of Figure 4 showing the pressure operated valve in open position.
Figure 6 is a view similar to Figure 4 but illustrating a second embodiment of the invention.
Figure 7 is a view similar to Figure 5 but illustrating the valve of the second embodiment in open position.
Figure 8 is a plan view of the bottom gasket plate of the heat exchanger of both embodiments of Figures 4 and 6.
Figure 9 is a sectional view taken substantially along line 9-9 of Figure 8.
Figure 10 is a plan view of one of the heat exchange - 2a -~.
~0~3~046 units used in both embodiments of the invention.
Figure 11 is a sectional view taken substantia]ly along line 11-11 of Figure 10.
Figure 12 is a plan vie~l of one of the pair of plates used in each heat excllange unit.
~ igure 13 is a sectional view taken substantially along line 13-13 of Figure 12.
Description of the Preferred Embocliments . _ _ _ _ _ In the embodiment of Fi.gures 1-5 the heat exchanyer 10 is an oil cooler mounted on an engine block 11 and connected to the coolant system of the engine by an inlet hose 12 and an outlet hose 13. In the embodiment of Figure 1 there is illustrated an oil filter 14 mounted on the heat exchanger 10 in superimposed relationship. For clarity of illustration the filter is shown in broken lines in the two embodiments of Figures 4 and 6.
As illustrated in detail in Fiyures 3-5 the oil cooler comprises a plurality of heat exchange uni.ts 15 sho~7n in assembled relationship in Figures ~ and 6 and illustra-ted indi.viduall.y in Figures 10 and 11. Each of these heat exchange units comprises a pair of plates 16 and 17 joined together at their peripheral edges as sho~7n at 18 with the plates held in spaced apart position as illustrated in Figure 11 and provided with first spacers 19 on the ;.nterior ~ each pair of plates 16 and 17 to define with the sealed edges 18 an internal first fluid or oil chamber 20.
The heat exchange units 15 are arranged in a superimposed stack as sho~Jn in both embod;ments of Figures ~ and 6 ~7ith each assembly or plurality of heat exchange units being enclosed by a generally cylindrical casing or tank 21.
Within the tank 21 there are provided means including spacers 22 bet~7een the units 15 for arranging these units in spaced series to provide a p]urality of success;vc second fluid chambers ~0~46 ~3 between the units. In the illustrated embodiments, of course, these chambers 23 are for the liquid coolant flowing from the entrance through the inlet l.ine 12 and from the heat exchanger back to the liquid coolant supply through the outlet line 13.
The pair of plates 16 and 17 comprising the individual heat exchange units 15 are provided with aligned openings 24 which serve as flow openings to provide access to and from the internal oil chambers 20. These openings which are separated from the water chambers by the spacers 22 comprise an oil inlet manifold 25 through which the oil flows and from there laterally into the chambers 20 as illustrated by the arrows 26 in both embodiments of Figures 4 and 6.
Within each oil chamber 20 of each unit 15 there is provided a turbulizer 27 to provide agitation to the oil and thus increase the heat transfer between the oil and the liquid coolant.
Any type turbulizer desired may be used but the one disclosed is of the type in which the sheet of metal 28 is cut in slits to provide strands alternate ones of which are distorted above and below the metal sheet 28 to provide projections 29.
Projecting through a central opening 30 in each of the units 15 and surrounded by the second spacers 22 is a pipe 31 having its lower end connected to a threaded extension 32 on the engine block 11 and its upper end threaded as shown at 33 to pro-vide a mounting for the filter 14. A filter of course is not necessary in the heat exchanger combination of this invention as the upper end 34 of the pipe 31 may be provided with a return cap, if desired, as illustrated in Figure 2 of applicant's above prior Canadian Patent No. 971,950.
The upper end of the heat exchanger 10 of this invention is defined by a sheet metal dome 35 that is shaped to provide an annular peripheral chamber 36. This chamber serves as a stabiliz-ing mounting for the oil filter 14 which is, of course, provided ,~
-: .
10~3~046 , with a gasket 37 of an 0-ring type between the filter 14 and the dome 35. A gasket similar to the gasket 37 is provided on the bottom of the exchanger between a bottom gasket plate 38 and an adjacent surface 39 of the block 11 as illustrated by the 0-ring type gasket 40.
In order to provide auxiliary spacers cooperating with the second spacers 22 to provide for the second or coolant fluid chambers 23 there are provided projecting distortions in each of the plates 16 and 17 that comprise these auxiliary spacers. These 10 spacers 41 are in the shape of truncated cones and therefore have flat tops 42 that are adapted to be arranged in contact in the successive heat exchange units 15 as illustrated in Figures 4 and 6. In order to provide stability to the assembly of heat ex-change units the end plates have their flat tops in similar contact with similar projections in a bottom header plate 43 in both em-bodiments and the end 44 of the casing or tank 21.
The bottom gasket plate 38 is of generally inverted dish-shape to provide a fluid distribution chamber 45 which in the illustrated embodiments is of course for distributincJ oil into 20 the oil inlet manifold 25 that has an entrance 46 at the engine block end of the heat exchanger. This communication into the lower two plate unit 15 is through aligned openings in the gasket plate 38, the header plate 43 and the lower spacer 22.
The gasket plate 38 and thus the gasket 40 surrounds a passage 47 in the block 11 for flow of heated oil 48 from the engine sump into the heat exchanger 10. The engine block 11 is also provided with a passage 49 in the embodiment of Figure 4 for the return of a portion of the cooled oil 52 to the engine sump in a manner to be described hereinafter. This passage ~9 telescopi~
30 cally receives a tube 53 that is attached to the plate 38 at a circular flange portion 54 and as can be seen in F~rc 4 is located adjacent to one side of the gaskct 40.
-The upper end 4~ of the tanJ 31 and the correspondingportion of the dome 35 is provided with an exit opening 55 from the heat exchanger and to the filter 1.4 when one is used. ~he oil after passage through the filter is then directed as indicat~d schematically by the arrows 56 into the top open end of the pipe 31 and from there back into the gallery of the engine block.
Therefore, the opening 46 in the heat exchanger comprises the entrance opening to the flow path 26 and the top opening 55 com-prises an exit opening from the heat exchanger oil outlet manifold 6~.
The dome 35 is provi.ded with a valve opening 57 that coincides with a similar opening 58 in the end ~ of the tank and the two comprising a bypass opening 59 that is aligned with the entrance 46 to the liquid inlet manifold 25. This bypass opening 59 is provided with an overlying leaf spring valve 62 that is : held in place by an annular extension 63 on the oil return pipe 31. This spring valve 62 normally 1;~s on top of the dome 35 to overlie the bypass opening 59 as shown in Figure 2. This causes the oil flow 26 in the illustrated embodiments to flow into the manifold 25, laterally as indicated into the oil chambers 20 in the units 15 in parallel flow and then by way of a diametrically opposite oil outlet manifold 6~ through the exit opening 55 and also through the auxiliary return passage 49.
However, when the viscosity of the liquid 48 is high, such as is the case with cold oil, the pressure of the cold oil is sufficient to displace upwardly the valve 62 to the open position of Figure 5 thereby permitting the oil to pass directly from the heat exchanger as indicated by the arrows 65 and thus bypassing much of the volume of the oil chambers 20. In this instance there will, of course, be some oil that will pass through the oppositely located opening 55 but because of the di.rect alignment oE tlle bypass openinC3 59 with the entrance ~6 the amount of oil passing through the coo]ing chambers will be relatively small.
10~3~3046 In the embodiment of the heat exchanger of Fiyure-6 the bottom of the oi.l outlet manifold 64 is provided with the second embodiment o~ a bypass valve. In this embodiment the valve 66 comprises a spring retainer 67 located in the bottom of the manifold 64.
The bottom of the retainer 67 is connected to an annular mounting member 72 that is located in the flange 54 that in the first embodiment held the tube 53.
The annular mounting 72 on its inner upper surface defines a valve seat that is engaged by a valve disc 73 normally held in closed position by a helical spring 74 that is positioned internally of the retainer 67. In this embodiment the opening shown at 57 in the dome 35 is omitted as this dome 75 contains only the outlet opening 76 that corresponds to the opening 55 o~
the first embodiment and the central opening 30. In this second embodiment the engine block 11 is also provided with the oil passage 47 but the auxiliary return passage 49 of the first em-bodiment is omitted. All other elements are exactly the same including the heat exchange units 15 and the pipe 31.
In this second embodiment of Figure 6 the heated oil 48 from the engine sump also enters the bottom of the inlet mani-fold 25 flowing laterally as indicated by arrows 26 into the chambers 20 in the units 15 in parallel flow throughward to exit at outlet manifold 64, thence through the exit opening 76. ~ow-ever, when the viscosity is such that pressure on the engine oil 48 is relatively great, the oil in the distribution chamber 45 will press upwardly against the bottom of the valve disc 73 as indicated by the arrows 77 to raise the valve to the open position illustrated in Figure 7. This permits the viscous oil under these conditions where very little if any cooli.ng is required to pass upwardly through and around valve 66 and into the outlet manifold 64 and from there through the out].et openinc3 76. As can be seen in Figure 6, in this embodiment the valve 66 and the outlet opening 76 are substantially linearly aligned. Then ~7hen the oil becomes sufficiently heated that its viscosity drops and spring 74 again closes the valve disc 73 to the position shown in Figure 6 the oil 48 is again directed as shown at 26 laterally through the interiors of the units 15 and into the diametrically opposite outlet manifold 64 defined by the aligned plate openings 68.
In the embodiment of Figure 4 the auxil~y return of some of the cooled oil 52 through the return passage ~9 permits an 1' increased flow rate because of this return of the portion to the sump after cooling. The remainder of the oil is of course directed to the gallery as indicated at 56 after filtering with the filter 14. Then the pressure relief valve 62 at the opposite end of the unit or in the dome 35 is provided for bypassing the ma30r portion of the heat exchanger when the oil is thick and congealed under the cold starting conditions.
In the embodiment of Figure 6 thick cold oil at cold start-'ns conditions lifts the valve disc 73 to the posi.tion shown in Figure 7 so that it can pass substantially directly into the
2 outlet m~nifold 6~ without going through the major cooling portions of the heat exchange units. In this embodiment the valve disc 73 will s10~.71y close as the spring pressure 7~ acts against the oil as its temperature rises.
Having described my invention as related to the embodi-ments shown in the accompanying drawings, it is my intention that the invention be not limited by any of the details of description, unless other~7ise specified, but rather be construecl broadly within its spirit and sc~pe as set out in the appended claims.
Having described my invention as related to the embodi-ments shown in the accompanying drawings, it is my intention that the invention be not limited by any of the details of description, unless other~7ise specified, but rather be construecl broadly within its spirit and sc~pe as set out in the appended claims.
Claims (5)
1. A heat exchanger for exchanging heat between a first fluid and a second fluid, comprising: a plurality of heat exchange units each comprising a pair of plates joined permanently together at respective outer peripheral edges; first spacer means in each said unit between and joined to said pair of plates and inwardly of said outer peripheral edges defining with said outer peripheral edges a first fluid chamber in each said unit; a tank enclosing said plurality of units; means including second spacer means for arranging said units in spaced series in said tank whereby each first fluid chamber is separate and spaced from an adjacent first fluid chamber, thereby providing a second fluid chamber between each adjacent pair of said units, an opening in each plate of each unit in said spaced series, said second spacer means comprising seal members located at and surrounding adjacent openings; means for joining said first fluid chambers in a first fluid flow path including said openings and said seal members; means for directing said first fluid into said tank and said first fluid flow path; means for directing said first fluid from said tank and said first fluid flow path through an exit opening; and means for directing said second fluid through said tank between said successive units and thereby through said second chambers.
2. The heat exchanger of claim 1 wherein said second spacer means separates said first flow chambers from said second flow chambers and wherein said means for arranging said units in spaced series in said tank further includes auxiliary spacer means, said auxiliary spacer means comprising at least one separate projecting area on each plate, the projecting areas in adjacent units being in contact to provide said auxiliary spacer means.
3. A heat exchanger for exchanging heat between two liquids, a first of which comprises a lubricating oil for an engine having an engine block and the second of which comprises a cooling liquid for said oil, comprising: a plurality of heat exchange units each comprising a pair of plates joined together at respective outer peripheral edges; first spacer means between and joined to each of said pair of plates and inwardly of said outer peripheral edges defining with said outer peripheral edges a first liquid chamber in each said unit; a tank enclosing said plurality of units; means including second spacer means for arranging said units in spaced series in said tank whereby each first liquid chamber is separate and spaced from an adjacent first liquid chamber thereby providing a second liquid chamber between each adjacent pair of said units, said second spacer means separating said first liquid chambers from said second liquid chambers and comprising means defining said first flow path; an opening in each plate of each unit in said spaced series, said second spacer means comprising seal members located at and surrounding adjacent openings; means for joining said first liquid chambers in a first liquid flow path including said openings and said seal members; means for directing said first liquid from said block into said tank and said first liquid flow path; means for directing said first liquid from said tank and said first liquid flow path through an exit opening back to said block; and means for directing said second liquid through said tank between said spaced units and thereby through said second chambers.
4. The heat exchanger of claim 3 wherein said first liquid path exit opening is provided with a pressure operated valve occupying a portion only of the exit opening, said valve being opened solely by cold first liquid to bypass automatically said first liquid flow path when cooling of said first liquid is unnecessary.
5. A heat exchanger for exchanging heat between two liquids, a first of which comprises a lubricating oil for an (claim 5 cont'd) engine having an engine block and the second of which comprises a cooling liquid for said oil, comprising: a plurality of heat exchange units each comprising a pair of plates joined permanently together at respective outer peripheral edges;
first spacer means in each said unit between and joined to said pair of plates and inwardly of said outer peripheral edges defining with said outer peripheral edges a first liquid chamber in each said unit; a tank enclosing said plurality of units;
means including second spacer means for arranging said units in spaced series in said tank whereby each first liquid chamber is separate and spaced from an adjacent first liquid chamber thereby providing a second liquid chamber between each adjacent pair of said units, an opening in each plate of each unit in said spaced series, said second spacer means comprising seal members located at and surrounding adjacent openings, means for joining said first liquid chambers in a first liquid flow path including said openings and said seal members; means for directing said first liquid into said tank and said first liquid flow path; means for directing said first liquid from said tank and said first liquid flow path through an exit opening; means for directing said second liquid through said tank between said spaced units and thereby through said second chambers; and a pressure operated valve occupying a portion only of said first liquid path exit opening, said valve being opened solely by cold first liquid to bypass automatically said first liquid flow path when cooling of said first liquid is unnecessary.
first spacer means in each said unit between and joined to said pair of plates and inwardly of said outer peripheral edges defining with said outer peripheral edges a first liquid chamber in each said unit; a tank enclosing said plurality of units;
means including second spacer means for arranging said units in spaced series in said tank whereby each first liquid chamber is separate and spaced from an adjacent first liquid chamber thereby providing a second liquid chamber between each adjacent pair of said units, an opening in each plate of each unit in said spaced series, said second spacer means comprising seal members located at and surrounding adjacent openings, means for joining said first liquid chambers in a first liquid flow path including said openings and said seal members; means for directing said first liquid into said tank and said first liquid flow path; means for directing said first liquid from said tank and said first liquid flow path through an exit opening; means for directing said second liquid through said tank between said spaced units and thereby through said second chambers; and a pressure operated valve occupying a portion only of said first liquid path exit opening, said valve being opened solely by cold first liquid to bypass automatically said first liquid flow path when cooling of said first liquid is unnecessary.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US05/721,564 US4360055A (en) | 1976-09-08 | 1976-09-08 | Heat exchanger |
| US721,564 | 1976-09-08 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA1088046A true CA1088046A (en) | 1980-10-21 |
Family
ID=24898463
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA280,040A Expired CA1088046A (en) | 1976-09-08 | 1977-06-07 | Heat exchanger |
Country Status (6)
| Country | Link |
|---|---|
| US (1) | US4360055A (en) |
| CA (1) | CA1088046A (en) |
| DE (1) | DE2729202A1 (en) |
| FR (1) | FR2364421A1 (en) |
| GB (1) | GB1539863A (en) |
| IT (1) | IT1079049B (en) |
Families Citing this family (48)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS59191888A (en) * | 1983-04-13 | 1984-10-31 | Nippon Denso Co Ltd | Heat exchanger |
| US4561494A (en) * | 1983-04-29 | 1985-12-31 | Modine Manufacturing Company | Heat exchanger with back to back turbulators and flow directing embossments |
| US4669532A (en) * | 1984-04-23 | 1987-06-02 | Kabushiki Kaisha Tsuchiya Seisakusho | Heat exchanger with temperature responsive bypass |
| JPS6144294A (en) * | 1984-08-07 | 1986-03-03 | Nippon Denso Co Ltd | Heat exchanger |
| US4708199A (en) * | 1985-02-28 | 1987-11-24 | Kabushiki Kaisha Tsuchiya Seisakusho | Heat exchanger |
| JPH073315B2 (en) * | 1985-06-25 | 1995-01-18 | 日本電装株式会社 | Heat exchanger |
| SE462059B (en) * | 1986-12-19 | 1990-04-30 | Blackstone Sweden | HEAT EXCHANGE WITH FLAT ROUTES, WHICH ROOTS ARE CREATED BY TWO HALFS WITH OVERLAPPING FLANES |
| US4836276A (en) * | 1987-03-09 | 1989-06-06 | Nippondenso Co., Ltd. | Heat exchanger for engine oil |
| JPH0624687Y2 (en) * | 1988-02-02 | 1994-06-29 | 東京濾器株式会社 | Oil cooler with oil filter |
| US4967835A (en) * | 1989-08-21 | 1990-11-06 | Modine Manufacturing Company, Inc. | Filter first donut oil cooler |
| US5179999A (en) * | 1989-11-17 | 1993-01-19 | Long Manufacturing Ltd. | Circumferential flow heat exchanger |
| FR2656412B1 (en) * | 1989-12-21 | 1995-02-17 | Valeo Thermique Moteur Sa | BLADE HEAT EXCHANGER, PARTICULARLY FOR THE COOLING OF THE LUBRICATING OIL OF A MOTOR VEHICLE. |
| DE4040875C2 (en) * | 1990-12-20 | 1994-09-01 | Laengerer & Reich Kuehler | oil cooler |
| US5078209A (en) * | 1991-02-06 | 1992-01-07 | Modine Manufacturing Co. | Heat exchanger assembly |
| DE4128153C2 (en) * | 1991-08-24 | 1994-08-25 | Behr Gmbh & Co | Disc oil cooler |
| US5558154A (en) * | 1992-12-01 | 1996-09-24 | Modine Manufacturing Company | Captive flow donut oil cooler |
| CA2113519C (en) * | 1994-01-14 | 1999-06-08 | Allan K. So | Passive by-pass for heat exchangers |
| US5544699A (en) * | 1995-02-10 | 1996-08-13 | Modine Manufacturing Company | Oil cooler with a self-fastening, self-orienting pressure relief valve |
| US5499675A (en) * | 1995-03-10 | 1996-03-19 | Modine Manufacturing Company | Oil cooler with a self-retaining, self-orienting pressure relief valve |
| US5992515A (en) * | 1995-11-17 | 1999-11-30 | Form Rite | Transmission fluid cooler-bypass unit for a transmission fluid cooling system |
| US5758908A (en) * | 1996-05-22 | 1998-06-02 | Modine Manufacturing Company | Oil cooler with improved coolant hose connection |
| DE19706893A1 (en) * | 1997-02-21 | 1998-08-27 | Behr Gmbh & Co | Disc oil cooler for road vehicle engine |
| US6131648A (en) * | 1998-11-09 | 2000-10-17 | Electric Boat Corporation | High pressure corrugated plate-type heat exchanger |
| US6032503A (en) | 1998-11-23 | 2000-03-07 | Modine Manufacturing Company | Method and apparatus for roll forming a plurality of heat exchanger fin strips |
| US20020162646A1 (en) | 2001-03-13 | 2002-11-07 | Haasch James T. | Angled turbulator for use in heat exchangers |
| US7299994B2 (en) * | 2001-08-31 | 2007-11-27 | Huron, Inc. | Oil cooler bypass valve |
| US6719208B2 (en) | 2001-08-31 | 2004-04-13 | Huron, Inc. | Oil cooler bypass valve |
| US6935569B2 (en) * | 2001-08-31 | 2005-08-30 | Huron, Inc. | Oil cooler bypass valve |
| US6499666B1 (en) * | 2001-08-31 | 2002-12-31 | Huron, Inc. | Oil cooler bypass valve |
| DE10347181B4 (en) * | 2003-10-10 | 2005-12-22 | Modine Manufacturing Co., Racine | Heat exchangers, in particular oil coolers |
| US20110067853A1 (en) * | 2004-08-27 | 2011-03-24 | George Moser | Fluid cooling device for a motor vehicle |
| DE102005004520A1 (en) * | 2005-01-31 | 2006-08-10 | Behr Gmbh & Co. Kg | The stacked-plate cooler |
| US7222641B2 (en) * | 2005-04-20 | 2007-05-29 | Dana Canada Corporation | Snap-in flapper valve assembly |
| US20060237184A1 (en) * | 2005-04-20 | 2006-10-26 | Yuri Peric | Tubular flapper valves |
| US7828014B2 (en) * | 2005-04-20 | 2010-11-09 | Dana Canada Corporation | Self-riveting flapper valves |
| US7318451B2 (en) * | 2005-04-20 | 2008-01-15 | Dana Canada Corporation | Flapper valves with spring tabs |
| US20060237079A1 (en) * | 2005-04-20 | 2006-10-26 | Cheadle Brian E | Self-riveting flapper valves |
| US7735520B2 (en) * | 2005-04-20 | 2010-06-15 | Dana Canada Corporation | Tubular flapper valves |
| US7306030B2 (en) * | 2005-04-20 | 2007-12-11 | Dana Canada Corporation | Snap-in baffle insert for fluid devices |
| US7644732B2 (en) * | 2005-04-20 | 2010-01-12 | Dana Canada Corporation | Slide-in flapper valves |
| DE102005041036A1 (en) * | 2005-08-25 | 2007-03-01 | Joma-Polytec Kunststofftechnik Gmbh | Heat exchanger, in particular oil cooler for an internal combustion engine |
| DE102005048294A1 (en) | 2005-10-08 | 2007-04-12 | Modine Manufacturing Co., Racine | Soldered heat exchanger and manufacturing process |
| DE102008027424A1 (en) * | 2008-06-10 | 2009-12-17 | Hydac S.A. | Fluid Cooler |
| DE102010027816B4 (en) | 2010-04-15 | 2018-09-13 | Ford Global Technologies, Llc | Internal combustion engine with oil circuit and method for heating the engine oil of such an internal combustion engine |
| DE102010027923A1 (en) * | 2010-04-19 | 2011-10-20 | Behr Gmbh & Co. Kg | Stack plate coolers for motor vehicles, comprises multiple washers and discharge passage, where cooling medium is supplied through discharge passage |
| DE102010021990A1 (en) * | 2010-05-29 | 2011-12-01 | Mahle International Gmbh | Filtering and cooling device |
| US8911620B2 (en) * | 2010-11-29 | 2014-12-16 | Vesa S. Silegren | Universal spin-on oil filter adapter |
| IT201600115641A1 (en) * | 2016-11-16 | 2018-05-16 | Ufi Filters Spa | AN ASSEMBLY OF FILTRATION AND REGULATION OF THE MOTOR OIL TEMPERATURE |
Family Cites Families (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE329241C (en) * | 1917-09-06 | 1920-11-18 | E Tuckermann Dr Ing | Heat exchange device |
| US2222721A (en) * | 1936-04-13 | 1940-11-26 | Gen Motors Corp | Oil cooler |
| CH245491A (en) * | 1942-05-22 | 1946-11-15 | Jendrassik Georg | Heat exchanger. |
| FR958699A (en) * | 1942-05-22 | 1950-03-17 | ||
| US2360123A (en) * | 1942-09-18 | 1944-10-10 | Gen Motors Corp | Oil cooler |
| US2511084A (en) * | 1947-11-07 | 1950-06-13 | Young Radiator Co | Heat-exchanger core |
| US2655351A (en) * | 1948-04-14 | 1953-10-13 | Separator Ab | Temperature control for heat exchangers |
| GB1136297A (en) * | 1965-11-09 | 1968-12-11 | Olof Cardell | Improvements in or relating to heat exchangers |
| US3444926A (en) * | 1967-11-28 | 1969-05-20 | Rosenblads Patenter Ab | Arrangement in heat exchangers of the plate type |
| BE794794A (en) * | 1971-11-04 | 1973-05-16 | Modine Mfg Cy | HEAT EXCHANGER |
-
1976
- 1976-09-08 US US05/721,564 patent/US4360055A/en not_active Expired - Lifetime
-
1977
- 1977-06-07 CA CA280,040A patent/CA1088046A/en not_active Expired
- 1977-06-17 GB GB25462/77A patent/GB1539863A/en not_active Expired
- 1977-06-20 IT IT49896/77A patent/IT1079049B/en active
- 1977-06-28 DE DE19772729202 patent/DE2729202A1/en not_active Ceased
- 1977-09-06 FR FR7726954A patent/FR2364421A1/en not_active Withdrawn
Also Published As
| Publication number | Publication date |
|---|---|
| IT1079049B (en) | 1985-05-08 |
| GB1539863A (en) | 1979-02-07 |
| US4360055A (en) | 1982-11-23 |
| FR2364421A1 (en) | 1978-04-07 |
| DE2729202A1 (en) | 1978-03-09 |
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